VBScript Introduction

VBScript?

The Microsoft Visual Basic Scripting Edition
language(VBScript), is a simplified version of the Visual Basic and Visual Basic for
Applications family of programming languages.

A D V E R T I S E M E N T

It is also well thought-out to be
closely related to the BASIC programming language.

VBScript is a scripting language,
which can enhance HTML Web pages by making them active, as compared to a simple
static presentation of data.Specifically, VBScript was created by Microsoft to use either as
a server-side scripting language with the Microsoft Internet Information Server (versions 3.0 and later).Or as a client-side scripting language for the Microsoft Internet Explorer (versions
3.0 and later) or as A most important advantage for
using the server-side approach is that the VBScript is processed by the server
before it is transmitted to the client. Therefore,the client only receives an
HTML page and we do not have to concern ourselves as to whether the browser can
interpret the VBScript. In contrast, by using the client-side approach, you
reduce the work load of the server by transfer the work to client end. Unfortunately, older version and non-Microsoft browsers may not be able to
correctly interpret and display the transmitted file. In addition to this, the
source code is out in the open to the browser user and also a client-side
program can produce a more-responsive application. since user input can be
processed on the client machine, and not sent back to the server for processing.

VBScript is the default language of Active
Server Pages (ASP).

VBScript may very well be the most important programming language for many Web-application.

VBScript Version 5.0 was released in 1999. Certainly, the most important new
feature of Version 5.0 is the ability to create your own class objects. Other new features included like the Timer function,
With statement, and regular expression searching using the RegExp and Match objects.

Scripting Language?

A scripting language differentiates itself from other typical languages in that they not needing to be compiled and are usually simpler to learn.
A Scripting language is interpreted at run-time so you can execuate instructions immediately.

A few characteristics :

Scripting languages often follow the semantics and syntax of command
languages. For illustration many scripting languages do not require quoting of
string literals, but rather require explicit evaluation of variables (x
denotes the string "x", but $x denotes the value of the variable x).

Scripting languages make it very simple to call system related commands, prepare their
arguments, and manipulate their results. They generally have some built-in
primitives for manipulating environment variables,file and directory names, argument lists
etc.

Since calling system related commands is generally much more expensive than
script execution itself, there is little emphasis on run-time efficiency,
therefore they are often implemented using interpreters,macro processors or bytecode
interpreters.

Pre-Requisites

Before continue to start VBScript you should have a basic understanding of
the following: